The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2014
Filed:
Jul. 30, 2012
Applicants:
Hiromitsu Ohhashi, Takatsuki, JP;
Junichi Sutani, Toyonaka, JP;
Inventors:
Hiromitsu Ohhashi, Takatsuki, JP;
Junichi Sutani, Toyonaka, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K 49/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
This coupling device includes a magnet rotator and a yoke-side member, while a conductor portion of the yoke-side member has a plurality of first conductor portions at least on a side opposed to magnets. A yoke of the yoke-side member is arranged at least on the side opposed to the magnets in a clearance between the plurality of first conductor portions. The ratio of the circumferential length of each of the first conductor portions to the circumferential length of the yoke is at least 1/1.4.